GLENDALE -- The Cal/OSH Standards Board has agreed to form an advisory committee to study a petition by occupational audiologist Mary McDaniel to require that certification be mandatory for all technicians who perform audiometric tests.Certification by the Council for Accreditation in Occupational Hearing Conservation (CAOHC) already is required in General Industry Safety Orders 5097(c)(3). But there is an exemption for technicians who have "satisfactorily demonstrated competence in administering a
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